LIFE SCIENCE

Detailed explanation-1: -Since this definition mentions organisms, Population logically has to include biotic factors. The definition also mentions only organisms interacting with each other, no non-living things, thereby precluding any abiotic factors. Therefore, a Population only includes biotic factors.

Detailed explanation-2: -The main difference between an ecosystem and a community is that a community only includes the biotic factors. Communities are made up of different populations of species.

Detailed explanation-3: -Description. Biotic and abiotic factors are what make up ecosystems. Biotic factors are living things within an ecosystem; such as plants, animals, and bacteria, while abiotic are non-living components; such as water, soil and atmosphere. The way these components interact is critical in an ecosystem.